Russian bombing of battle scarred Syrian city of Aleppo has hit an all time high as Assad regime forces make big gains on the ground. Now even cluster bombs, meant to attack large formations of troops in the open, are being dropped on the sprawling metropolis that two million Syrians once called home.

As far as what weapon was used during the pictured attack, it remains unclear, but it looks as if it is just a standard high-capacity cluster bomb, probably of the 500kg to 750kg variety, such as the RBK-500/750. Russia was also seen testing its own version of the Sensor Fused Weapon months ago, but its effects are far more focused, and used primarily for attacking vehicles in the field than the indiscriminate area bombardment that is seen in the video above. This weapon is called the RBK-500 SPBE-D and you can see it in action below.

As for that supposed ceasefire coming in days, nobody seems to have put much faith in it. Both Syrian rebels and Russian forces have hinted that they will fight through it. Maybe the best barometer as to the chances that a ceasefire will actual be adhered to are the aid workers doing their jobs in the Syrian war zone, and their outlook remains very bleak.